function  registerAcc($user_name,$user_pass,$conn){


      $query=$conn->prepare("insert into PhysiApp (PhysID, Username, Password, Steps, TotalSteps) values (NULL, Username=:user_name, Password=:user_pass, 0, 0)");
      $query->bindParam(':user_name',$user_name);
      $query->bindParam(':user_pass',$user_pass);

      $query->execute();
      $rows=$query->rowCount();
      if($rows == 1){
        return true;
      }else{return false;}
    }


    function close(){
      $conn=null;
    }